How are pathogens spread by contaminated objects

What are the probable phenotypes of their offspring

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

Plant species a has a diploid number of 12. plant species b has a diploid number of 16. a new species, c, arises as an allopolyploid from a and b. the diploid number for species c would probably be a) 12. b) 14. c) 16. d) 28. e) 56.